The easiest way to put the path of your virtual drive is to first type the following in Terminal (with a space after modifyhd): VBoxManage modifyhd /Volumes/Mac 750G SSD/VirtualBox VMs/Windows 7/Windows 7.vdi –resize 50000 For me this is exactly what I had to run (for a 50,000/50Gig drive): vdi VirtualBox virtual drive is located and megabytes is the new (larger) size of the drive in MB. In Terminal you need to type (or copy and paste) the following command: Step 3: Run a Terminal command to resize the your. This is what it looks like in OS 10.10.3 Yosemite: You can easily launch it by clicking on the spotlight icon in the top right corner of the screen and type “Terminal” and then press the return key. Your virtual machine must say “Powered Off” in the VM Machine list of VirtualBox It must be listed as “Powered Off” and cannot be suspended/paused: Step 1: Shut down your VirtualBox operating system.
How to install OS X Mavericks in Virtualbox with N.Replace "1920x1080x32" with whatever resolution you're using. Replace "Name of virtual machine" with the name of your virtual machine- you can find the name of your virtual machine in the left pane of the Virtualbox main window (in the screenshot below, my virtual machine is named "Mountain Mac 2"). This command activates "vboxmanage", a command-line program included with Virtualbox that allows you to edit the properties of your virtual machine, including its built-in resolutions. Vboxmanage setextradata "Name of virtual machine" "CustomVideoMode1" "1920x1080x32" You can do this by opening the Start Menu, and typing "command prompt" into the Start Menu search bar. Then, type the following command into the Command Prompt.
Open the Command Prompt in Windows (make sure you are logged into an Administrator account on Windows). For instance, if you want to use the 1600x900 resolution, type in "1600x900x32". Once you've saved it, turn off the virtual machine. You can change "1920x1080x32" to whatever resolution best fits your monitor.
This is normal Mac OS X has installed successfully. When the installation finishes, Mac OS X will crash into a black screen with white text. Once you have selected the appropriate options from the "Customize" screen, return to the installation summary page and click "Install". All it does is decrease the default screen size of your virtual machine from 1280x1024 to 1024x768. However, Virtualbox doesn't support Mac OS X graphics anyways, so this option is essentially pointless for virtual machines. Normally, it allows Mac OS X to work better with your computer's graphics card.
NOTE 1: If your computer uses an AMD processor, you will have to type the boot flag "amd" or "amd64" (without quotation marks)- which flag you need depends on your specific processor, so test one flag at a time. You will come up to the Niresh boot screen, with one option to select: OSX-Mavericks.